Fix #3773: Generated JS now avoids the flatbuffers object

js/flatbuffers.js

@@ -88,6 +88,16 @@ flatbuffers.Long = function(low, high) {
   this.high = high | 0;
 };
 
+/**
+ * @param {number} high
+ * @param {number} low
+ * @returns {flatbuffers.Long}
+ */
+flatbuffers.Long.create = function(low, high) {
+  // Special-case zero to avoid GC overhead for default values
+  return low == 0 && high == 0 ? flatbuffers.Long.ZERO : new flatbuffers.Long(low, high);
+};
+
 /**
  * @returns {number}
  */
@@ -751,6 +761,17 @@ flatbuffers.Builder.prototype.createString = function(s) {
   }
   return this.endVector();
 };
+
+/**
+ * A helper function to avoid generated code depending on this file directly.
+ *
+ * @param {number} low
+ * @param {number} high
+ * @returns {flatbuffers.Long}
+ */
+flatbuffers.Builder.prototype.createLong = function(low, high) {
+  return flatbuffers.Long.create(low, high);
+};
 ////////////////////////////////////////////////////////////////////////////////
 /// @cond FLATBUFFERS_INTERNAL
 /**
@@ -1101,6 +1122,17 @@ flatbuffers.ByteBuffer.prototype.__has_identifier = function(ident) {
   return true;
 };
 
+/**
+ * A helper function to avoid generated code depending on this file directly.
+ *
+ * @param {number} low
+ * @param {number} high
+ * @returns {flatbuffers.Long}
+ */
+flatbuffers.ByteBuffer.prototype.createLong = function(low, high) {
+  return flatbuffers.Long.create(low, high);
+};
+
 // Exports for Node.js and RequireJS
 this.flatbuffers = flatbuffers;